New Subclade Announcement: E-Y107937

After a short break, we are excited to announce the recognition of another subclade by YFull! The subclade is called E-Y107937, and it is downstream E-A15856.

Many thanks to our two Big Y testers whose kits are now defining the new subclade at YFull.

It is a one SNP subclade defined by the mutation Y107937. 

With these two kits, YFull's age estimate for the TMRCA of this subclade is approximately 600 years ago. As this is the same age as its parent E-A15856, it is likely that this subclade was formed quite quickly after its parent. This is normally indicative of a short period of large population growth. 

This subclade is primarily associated with group D11 and secondarily with D02 in the Y-DNA results page here. If your kit is in this group, and you would like to confirm that you are positive for the SNPs defining this subclade, please send an admin an email. 

According to the countries of origin for members of E-A15856, this subclade seems to be centered around Eastern Europe. We have two with roots in Ukraine, one in Lithuania, one in Poland, and one in Hungary. Due to the diversity of its grandparent E-Y18621, its origin is unknown, although its age and current geographic spread correspond with historically documented Jewish migration and population growth in Poland after the Black Death. 

Our next steps for research of this subclade are:
1) To contact specific members who are likely in the subclade
2) To get these members SNP tested
3) To survey these other members for more geographic and genealogical information

You can see the new subclade here. If you have any questions about this subclade, please post a comment or send us an email. Thanks!

- Leo